Flame retardant polyamide

Abstract

A composition contains at least a copolyamide (PA-1) as a component (I), produced by polymerization of at least one lactam and of a monomer mixture (M) which contains at least a C32-C40 dimer acid and at least a C4-C12 diamine; and a flame retardant (F1) as a component (II). The flame retardant (F1) is selected from melamine cyanurates, magnesium hydroxide, and phosphorus-containing flame retardants. A process can be used for preparing such compositions, and the composition can be used for producing shaped articles.

1 - 9 . (canceled) 
     
     
         10 . A composition, comprising at least:
 (I) a copolyamide (PA-1), prepared by polymerization of
 (A) at least one lactam, and 
 (B) a monomer mixture (M) comprising the following components:
 (B1) at least one C 32 -C 40  dimer acid, and 
 (B2) at least one C 4 -C 12  diamine; and 
 
   (II) a flame retardant selected from the group consisting of a melamine cyanurate, magnesium hydroxide, and a phosphorus-containing flame retardant.   
     
     
         11 . The composition according to  claim 10 , wherein a proportion of the copolyamide (PA-1) in the composition is in a range from 5% to 95% by weight, based on a sum total of components (I) and (II). 
     
     
         12 . The composition according to  claim 10 , wherein the composition comprises at least one first phosphorus-containing flame retardant (F1) selected from the group consisting of a derivative of phosphoric acid and a derivative of phosphoric acid, and
 wherein the composition comprises at least one further phosphorus-containing flame retardant (F2) selected from the group consisting of a derivative of phosphinic acid.   
     
     
         13 . The composition according to  claim 12 , wherein the at least one first phosphorus-containing flame retardant (F1) is selected from the group consisting of resorcinol bis(diphenyl phosphate) (RDP), bisphenol A bis(diphenyl phosphate) (BDP), and diphenyl cresyl phosphate (DPK). 
     
     
         14 . A process for producing a composition (Z-2), comprising:
 (a) providing the following components
 (I) a copolyamide (PA-1), prepared by polymerizing at least one lactam and a monomer mixture (M) comprising
 (B1) at least one C 32 -C 40  dimer acid, and 
 (B2) at least one C 4 -C 12  diamine; and 
 
 (II) a flame retardant selected from the group consisting of a melamine cyanurate, magnesium hydroxide, and a phosphorus-containing flame retardant, and 
   (b) mixing components (I) and (II).   
     
     
         15 . A method, comprising:
 producing a shaped article with the composition according to  claim 10 .   
     
     
         16 . A shaped article, comprising the composition according to  claim 10 .